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Träfflista för sökning "WFRF:(van den Dool T. C.) "

Search: WFRF:(van den Dool T. C.)

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1.
  • Mora, A., et al. (author)
  • Gaia on-board metrology: basic angle and best focus
  • 2014
  • In: Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave. - : SPIE. - 1996-756X .- 0277-786X. ; 9143, s. 91430-91430
  • Conference paper (peer-reviewed)abstract
    • The Gala payload ensures maximum passive stability using a single material, SiC, for most of its elements. Dedicated metrology instruments are, however, required to carry out two functions: monitoring the basic angle and refocusing the telescope. Two interferometers fed by the same laser are used to measure the basic angle changes at the level of pas (prad, micropixel), which is the highest level ever achieved in space. Two ShackHartmann wavefront sensors, combined with an ad-hoc analysis of the scientific data are used to define and reach the overall best-focus. In this contribution, the systems, data analysis, procedures and performance achieved during commissioning are presented
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2.
  • van den Dool, Annemieke, et al. (author)
  • The future is distributed: a vision of sustainable economies
  • 2009
  • Reports (other academic/artistic)abstract
    • “The Future is distributed: a vision of sustainable economies” is a collection of case studies on distributed economies, a concept describing sustainable alternatives to the existing business models. The authors of this publication are international Masters students of the Environmental Sciences, Policy and Management Programme at the International Institute for Industrial Environmental Economics at Lund University in Sweden. The aim of their work is to demonstrate that local, small-scale, community-based economies are not just part of the theory, but have already been implemented in various sectors and geographical settings.
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